I Do This For The Glory
Join Date: Dec 1999
Location: Nobleboro, Maine
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Re: universal joints?
Grab the shaft in your hand and rotate the joint around in circles, making sure to get the full range of motion, then applying pressure while doing it.
(good thing I'm not a pervert or that could have sounded funny!)
You should be able to 'feel" the joint, but it should be smooth. if there is any roughness, binding, or stiffness, it probably needs to be replaced. If you feel nothing, it's good, throw it back in.
You have to have the driveshaft out to do this, it won't work on the vehicle, and it's best if you're "looking" for something wrong. When in doubt, better to be safe than sorry, but I wouldn't replace them "just because", they're easy enough to do it if you pick up a vibration later.
Winter Harbor, Maine
'81 CJ-8 Scrambled, It's a Jeep, Chevy, IHC kinda thing!
'88.5 Zuki, 7" Lift, Locked, Swamped, Rolled, and just generally broken in right!